Universal joint.



W. L. DAVIS, C. D SMITH & R. O. BRIGHT.

UNIVERSAL 1mm.

APPLICATION FILED IAN-2.1918

Patented Apr. 25, 1918.

2 SHEETSSHEET 2.

J71 61 mm 601 1 a YYL/iiam LDaUrb 1 Charles D. 3mLfh Roberts OBP/qhf AND ROBERTS 0. BRIGHT, OF ANDERSON NUFACTURING: COMPANY, OF ANDERSON UNIVJEAL J OIN T.

Specification of Letters Patent.

Patented Apr. 23, Int

pplioation filed January 2, 1918. Serial No. 210,026.

To all whom it may concern:

Be it known that we, WILLIAM L. Dnvrs, CHARLES D. SMITH, and ROBERTS O. BRIGHT, citizens of the United States, residing at Anderson, in the county of Madison and State of Indiana, have invented certain new and useful Improvements in Universal Joints, of which the following is a specification.

This invention relates to improvements in universal joints.

The mam objects of this invention are:

First, to provide an improved universal joint in which the bearing) parts are all effectively housed in a charm er adapted to receive and retain lubricant.

Second, to provide an improved universal joint in which the parts are simple and economical to produce and very easily assembled and disassembled,

Further objects, and objects relatin to structural details, will definitely appear rom the detailed description to follow.

We accomplish the objects of our invention b the devices and means described in the fo lowing specification. The invention is clearly defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing forming a part of this specification, in which: I

Figure I is a side view of a universal joint embodying the features of our invention.

Fig. II 1s a longitudinal section on a line corresponding to line 2-2 of Figs. I, III, IV, V and VIII, oneof the journal pins bein shown in full lines.

ig. III is a longitudinal section on a line corresponding to line 33 of Figs. II, IV, V and VIII, the other journal pin being shown in full lines.

Fig. IV is a transverse section on a line corresponding to line t4= of Flgs. I, II and III, parts belng shown in full lines. t

Fig. V is a transverse section on a line corresponding to line 5-5 of Figs. I, II and III.

Fig. VI is a side view of the journal member.

Fi. VII is an end view of the Fig. VIII is a cross section on a line corresponding to line 8-8 of Figs. I,II and III.

- ceive the bolts 6 by means of which the sect1on 3 is secured thereto. This shaft member is adapted to receive the inner shaft member 7 and constitutes a housing and lubricant receptacle. The shaft member 7 has forks or arms 8 and a spherically curved rear face 9. The outer shaft member has journal in openings 10 in which the bushings 11 are disposed.

The arms. of the inner shaft member have journal pin openings 12 in which bushings 13 are disposed, the bushings 13 having flanges 14: at thelr inner ends which fit into annular recesses 15 about the inner ends of the journal openings. By inserting these bushings from the inner sides of the arms and providing them with flanges they are retained against outward movement.

The 'ournal member 16 has bearing surfaces 1% coacting with bearing surface 18 in the outer shaft member and bearing surfaces 19 coacting with bearing surfaces 20 on the inner faces of the arms 8. The bearing surfaces 19 have lubricant grooves 21 therein, while the bearing surfaces 17 have radial lubricant grooves 22 therein, so that the lubricant may efiectively pass to these surfaces and to the journal ins. The journal pin 23 for the inner sha t member is carried by the journal member 16, while the other journal pin 24; is carried by the outer shaft member. The journal pin 24: is disposed through the journal pin 23 securing it against longitudinal movement. The journal pin 2% and its bushings are retained by the screws 25 threaded in the openings 10.

- Gaskets 26 are arranged in annular recesses 27 about the bushings 11, so as to assist in preventing the escape of lubricant around these screws 25.

An annular closure member 28 is threaded into the outer shaft member and carries the packing 29 coacting with the spherical surface thereof. Screws 30 are arranged in tapped bosses 31 on the outer shaft member to engage the closure member 28, locking it in its adjusted positions.

The shank 32 of the outer shaft member I has longitudinal splines 33 formed therein to engage the shaft "34 permitting longitudinal movement thereof.

With the parts thu arranged, the bearings are all very effectively lubricated and the lubricant is efiectively retained. The parts are simple and economical to produce and very easily assembled and disassembled.

We have illustrated and described our improvements in an embodiment in which we have embodied the same for the market. We have not attemped to illustrate or describe other modifications and adaptations, as we believe the disclosure made will enable those skilled in the art to which our invention relates to embody or adapt the same as may be desired.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is 1. In a universal joint, the combination of an outer shaft member constituting a housing member and having journal pin openings therein, an inner forked shaft member having journal pin openings in the arms thereof and a spherically curved rear surface, bushings for said journal pin openings, the bushings for the journal pin openings of the inner shaft member being flanged attheir inner ends and inserted from the inner sides of the arms thereof, a journal member arranged within said outer shaft member with its ends in bearing engagement with the Walls thereof, said journal member being a bearing fit between the arms of said inner member, a 'ournal pin carried for the inner shaft mem er carried by said journal member, a second journal pin carried by said outer shaft member disposed through said journal member and said inner shaft member journal pin securing it against longitudinal movement, screws threaded into said journal pin openings of said outer shaft member to retain said bushings and journal pin therein, an annular closure member embracing said inner shaft member and coacting with said spherical surface thereof threaded into said outer shaft member, and means for locking said closure member against rotative movement.

2. In a universal joint, the combination of an outer shaft member having journal pin openings therein, an inner forked shaft member having journal pinopenings in the arms thereof, bushings for said journal pin openings, the bushings for the journal pin openings of the inner shaft member being flanged at their inner ends and inserted from the inner sides of the arms thereof, a journal member arranged within said outer shaft member with its ends in bearing engagement with the walls thereof, said journal member being a bearing fit between the arms of said inner member, a journal pin carried for the inner shaft member carried by said journal member, a second journal pin carried by said outer shaft member disposed through said journal member and said inner shaft member journal pin securing it against longitudinal movement, screws threaded into said journal pin openings of said outer shaft member to retain said bushings and journal pin therein.

3. In a universal joint, the combination of an outer shaft member constituting a housing member and having 'ournal pin openings therein, an inner for ed shaft member having journal pin openings in the arms thereof and a spherically curved rear surface, bushings for said journal in openings, a journal member arranged wit in said outer shaft member, a journal pin carried for the inner shaft member carried by said journal member, a second journal pin carried by said outer shaft disposed through said journal member and said inner shaft member journal pin securing it against longitudinal movement, screws threaded into said journal pin openings of said outer shaft member to retain said bushings and journal pin therein, and an annular closure member embracin said inner shaft member and coacting with said spherical surface thereof threaded into said ou er shaft member, and means for locking said closure member against rotative movement.

4. In a universal joint, the combination of an outer shaft member havin journal pin openings therein, an inner for ed shaft member having journal pin openings in the arms thereof, bushings for said journal pin openings, a journal member arranged within said outer shaft member, a journal pin carried for the inner shaft member carried by said journal member, a second journal pin carried by said outer shaft member disposed through said journal member and said inner shaft member journal pin securing it against longitudinal movement, and screws threaded into said journal pin openings of said outer shaft member to retain said bushings and journal pin therein.

5. In a universal joint, the combination of an outer shaft member constituting a housing member and having journal pin openings therein, an inner forked shaft member having journal pin openings in the arms thereof, bushings for said journal pin openings, a journal member arranged within said outer shaft member and having bearing surfaces coacting with bearin surfaces on the walls thereof and with the inner surfaces of the arms of said inner shaft member, the

memes bearing surfaces of said journal member our hands and seals in the presence of twe havmg lubrlcant grooves therem, an mner wltnesses.

shaft member journal pin carried by said WILLIAM L. DAVIS. [LSD] journal member, a second journal pin car- CHARLES D. SMITH. [13.8.]

5 ried by said outer shaft member disposed ROBERTS O. BRIGHT. [Lesuj through said journal member, and a closure Witnesses: member embracing said inner shaft member. AVERY JACKSON BRADFORD,

In witness whereof, we have hereunto set HA Br, 

